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Community Water System · PWS NE3108101

Aurora, City Of

Aurora, Nebraska 68818 - drinking water served from groundwater sources to 4,678 people, tracked in EPA SDWIS and UCMR5.

4,678
People served
32
EPA violations
32
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 32 drinking-water violations at Aurora, City Of, 100% of them health-based - below the Nebraska per-system average.

32
Total EPA violations on record
100%
Health-based (MCL / treatment failure)
4,678
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Aurora, City Of

Aurora, City Of is a local-owned community water system that delivers drinking water to 4,678 residents in Aurora, Nebraska (Hamilton County) through 2,061 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 32 total violations for this system , of which 32 (100%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 19 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Nebraska, EPA tracks 1,309 public water systems serving 1,798,088 people, with 49,989 cumulative violations and 32,716 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 38.2 violations. Statewide, 52 of 53 UCMR5-tested systems have reported PFAS detections (98.1%).

Aurora, City Of's 32 violations sit below the Nebraska average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
4,678
Total Violations
32
Health-Based Violations
32
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
2,061
County
Hamilton
School/Daycare
No
MCL Violations
28
Monitoring Violations
0
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 19 2008
Tetrachloroethylene MCL 5 2014
Lead and Copper Rule TT 4 1998
Nitrate-Nitrite MCL 4 2017

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 406 samples detected PFAS.

Contaminant Date Result MRL Status
ADONA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 5/8/2023 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 5/8/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 5/8/2023 <8.00 ppt 8.00 ppt Not Detected
PFHpS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
NFDHA 5/8/2023 <20.00 ppt 20.00 ppt Not Detected
PFEESA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
11Cl-PF3OUdS 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 5/8/2023 <2.00 ppt 2.00 ppt Not Detected
PFUnA 5/8/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFBS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 5/8/2023 <2.00 ppt 2.00 ppt Not Detected
PFUnA 5/8/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpA 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 5/8/2023 <6.00 ppt 6.00 ppt Not Detected
PFOS 5/8/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 5/8/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 5/8/2023 <8.00 ppt 8.00 ppt Not Detected
NEtFOSAA 5/8/2023 <5.00 ppt 5.00 ppt Not Detected
PFHxS 5/8/2023 <3.00 ppt 3.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Aurora, City Of.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NE3108101 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Nebraska Drinking Water Authority

Nebraska's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find NE regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2017 Nitrate-Nitrite MCL 4 SDWIS / NE3108101 / 1038
2014 Tetrachloroethylene MCL 5 SDWIS / NE3108101 / 2987
2008 Coliform (TCR) MCL 19 SDWIS / NE3108101 / 3100
1998 Lead and Copper Rule TT 4 SDWIS / NE3108101 / 5000

How Aurora, City Of Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Aurora, City Of Nebraska avg Federal benchmark
Total violations 32 38.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 32 25 Indicates a contaminant exceeded a federal MCL
PFAS detection None 98.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,678 1,374 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,309 regulated public water systems in Nebraska.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Aurora, City Of water safe to drink? ▼
Aurora, City Of (PWS ID: NE3108101) has 32 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 4,678 people using Groundwater sources.
How many people does Aurora, City Of serve? ▼
Aurora, City Of serves 4,678 people in Aurora, Nebraska. It is a Local-owned system using Groundwater water sources with 2,061 service connections.
What type of violations does Aurora, City Of have? ▼
Aurora, City Of has 32 total violations: 32 health-based violations (MCL exceedances or treatment failures), 0 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Aurora, City Of water? ▼
No. Aurora, City Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Aurora, City Of use? ▼
Aurora, City Of uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.